Size & Center Drain The silicone kitchen sink protector mat is24.8" x 13", and with a 4.7" diameter center drain, before purchasing, ensure size of sink for perfect choice. Protect Your SinkSilicone material is flexible and pliable.This silicone sink protectors for kitchen sink conform to a slight curve up the sink side,cushion the sudden force if dishes or bowls fall into the sink. A good sink protection for your fragile glassware and stainless steel or ceramic sink. Raised Bottom FeetNon-slip and raised feet elevate the kitchen sink mats with drain hole to allow little food particles and water run through it. The silicone sink mat also work as a dish drying mat under the sink. Kitchen sink grid has an center opening for the sink drain,fits most bowl sinks center drain hole. Heat ResistantOur sink mats and protectors can handle up to 500F so that you can safely place pots and dishes in the sink or porcelain countertop directly from the oven or stove.Also use as a drying grid, dishware drainer,drain rack, cooling rack, defrosting grid etc. Easy to Clean&Dishwasher SafeKitchen sink protector pads are effortless to clean, you can put the mat under running water to clean, and the silicone sink mat is dishwasher safe, rust resistant and stable in texture, fine with regular cleaning. It's a great gift for elders, mothers, friends and neighbors.